What is ConvertAll?

Why write another unit converter? There are plenty of them
out there. Well, I couldn't find one that worked quite the way
I wanted.

With ConvertAll, you can combine the units any way you want.
If you want to convert from inches per decade, that's fine. Or
from meter-pounds. Or from cubic nautical miles. The units
don't have to make sense to anyone else.

In addition to this installed version, there is also an online
version, written in JavaScript. See convertall-js.bellz.org
to try it out.

The German translation was updated. Thanks to Thomas
Helmke for translating.

Added some MSVC runtime DLL files to the Windows
installers to avoid problems on PCs that do not already have
them.

Clarified some dependency checker error messages in the
Linux installer.

Bug Fixes:

Fixed an error in the unit data formula for the AWG area
unit.

Changed the value of the caliber unit to be equivalent to
inches (typical written usage), not hundredths of an inch
(typical verbal usage).

February 1, 2014 - Release 0.6.0

New Features:

ConvertAll has been ported from Python 2 to Python 3. This
porting includes some code cleanup.

Added an option to automatically load the last used units at
startup.

Added an introductory tip dialog box that explains combined
units. There is also an option to hide this dialog.

There is an additional Windows installer for users without
administrator rights and for portable installations.

Added a Windows installer option to add a config file to the
program's directory for portable installations. If that file is
present, no config files will be written to users'
directories.

Updates:

The Windows binaries are built using more recent Python, Qt
and PyQt libraries.

The user interface and unit data language translations are
now included in the main installation files.

Added the long ton unit (Imperial version of the ton).

Added the kilopond unit as a synonym of kilogram-force.

Added the micron of Hg pressure unit.

Added the lunar distance (LD) astronomical distance
unit.

Added the rack unit (height of an electrical rack).

Added the versta Russian length unit.

Bug Fixes:

Fixed the operation of the "Clear" button in the Unit Finder
dialog.

Fixed a problem with the definition of the BTU unit in the
French translation.

November 2, 2011 - Release 0.5.2

Updates:

Added the microliter volume unit.

Added the galileo acceleration unit.

Added the stremma land area unit.

Bug Fixes:

Changed the method of identifying a "unitless" portion of a
unit to avoid falsely reporting incompatibility between some
units when using language translations.

April 12, 2011 - Translation Update 0.5.1b

Bug Fixes:

Fixed inconsistencies in all three unit data translations
(French, German and Spanish) that caused some unit conversions
to fail.

March 31, 2011 - Release 0.5.1

Updates:

Added the link length unit.

Added US survey variations of the mile and chain length
units.

Added the centigray radiation dose unit.

Use DOS newline characters in the Windows version of the
unit data file for easier editing by users.

Bug Fixes:

Fixed incorrect definition of the rad radiation dose unit
(it was off by a factor of 10).

May 2, 2010 - Translation Update 0.5.0b

Updates:

Added a Spanish translation to the 0.5.0b version of the
translations. The French and German translations remain
unchanged.

April 23, 2010 - Release 0.5.0

New Features:

Multiplication and division operators now have the same
precedence. In previous versions of ConvertAll, a series of
units after a division symbol were assumed to be in the
denominator. Now, a division operator only affects the unit (or
the unit group in parenthesis) immediately after the
operator.

Parenthesis are now supported to group units in the
denominator of a combined unit. For example, ""m / sec / kg"
can also be entered as "m / (sec * kg)".

"Recent Unit" buttons have been added that open a menu of
recently used units and unit combinations. A unit selected from
the menu will replace the current unit combination. There is
also a new option dialog entry that controls the maximum length
of this menu.

Updates:

Added the tonne force metric force unit.

Added hundredweight long and hundredweight short mass
units.

Added an American Wire Gauge (AWG) area unit in addition to
the existing AWG diameter unit.

French and German translations have been added for the user
interface and the unit data. To use them, download and install
the "convertall-i18n..." file for your platform (in addition to
installing the standard ConvertAll package).

Bug Fixes:

Fixed problems with running in the command line mode from
Linux consoles without X11 present.

September 24, 2009 - Release 0.4.3

New Features:

Prepared ConvertAll for translation efforts by properly
handling Unicode characters in unit data and by marking internal
program strings for translation. Volunteers for translating
ConvertAll into other languages are welcome.

Updates:

Added solar mass and pennyweight mass units.

Added therm and thermie energy units.

Added gauss and maxwell magnetic units.

Added the US survey foot length unit.

Added the mpg imp mileage unit.

Changed the value of the point unit from the old American
point to the more modern desktop publishing point.

Bug Fixes:

A critical QString conversion bug that caused ConvertAll to
not run with the latest version of PyQt (4.5.4) was fixed.

Command line quiet mode was fixed to avoid an interactive
prompt when bad unit data is entered.

May 28, 2008 - Release 0.4.2

Updates:

Added the "liter per 100 km" unit for fuel consumption.

Bug Fixes:

Changed the "mach" unit from 331.46 m/s to 340.29 m/s. It
is now correct for STP conditions (15 degrees C). The previous
value was for 0 degrees C.

Fixed a bug that could hide messages about errors in a
manually edited unit data file.

January 22, 2008- Release 0.4.1

New Features:

An optional command line mode was added to do
conversions without the graphical interface. Enter the
command ("convertall"), the number, the from unit and the to
unit (separated by spaces) to do the conversion. For a more
detailed list of options, enter "convertall -h" on the
command line.

Updates:

The icon used for ConvertAll has been updated. Thanks
to Ricardo Berlasso for the new artwork.

Alternate units have been added for kilobyte, megabyte,
etc., marked "IEC std". These convert using powers of 10,
rather than powers of 2.

Troy pounds and troy ounces have been added.

Gigapascal, hectopascal and megabar have been
added.

Hogshead units for wine and beer have been added.

The Swedish mil unit of distance has been added.

The Thai rai and ngaan units of land area have been
added.

October 5, 2006 - Release 0.4.0

New Features:

ConvertAll was ported to the Qt4 library. This involved
a significant rewrite of the code. The previous versions
used Qt3.x on Linux and Qt2.3 on Windows. Benefits include
updated widgets and removal of the non-commercial license
exception in Windows.

Updates:

On Windows, the ConvertAll.ini file has been moved from
the installation directory to a location under the
"Documents and Settings" folder. This avoids problems on
multi-user systems and for users with limited access
rights.

October 5, 2006 - Release 0.3.2

Updates:

Added Imperial (UK) gallons, quarts, pints and fluid
ounces.

Added gigagram and teragram units.

Added the pound-mole unit and clarified that the
existing mole is a gram-mole.

February 14, 2005 - Release 0.3.1

Updates:

Added the decare unit for land area.

The Linux installer has been updated to be more robust and
give more install directory options.

Bug Fixes:

The barn unit, used in particle physics, was corrected.
It had been incorrectly listed as a length unit instead of an
area unit.

March 11, 2004 - Release 0.3.0

New Features:

A unit finder window was added to allow the unit list to
be filtered and searched.

The size and position of the main and finder windows are
now saved at exit.

A new option allows the operator text entry buttons (x, /,
^2, ^3 and Clear Unit) to be hidden.

An install program has been added for windows.

Bug Fixes:

Fixed Linux install script problems with certain versions
of Python.

November 18, 2003 - Release 0.2.4

Updates:

Keyboard shortcuts and tab-focus order for the main dialog
have been improved.

An install script was added for Linux and Unix
systems.

The windows build now uses Python version 2.3 and PyQt
version 3.8.

March 24, 2003 - Release 0.2.3

Updates:

When an expression using division is entered for the
number to be converted, floating point division is now used
even if the entries are integers (Python 2.2 or greater
only).

Mouse wheels are now supported in the unit lists.

Icon files are now provided with the distribution
files.

May 28, 2002 - Release 0.2.2a

Bug Fixes:

A fix of the Windows binary only. Fixes major problems
by upgrading the library version to PyQt 3.2.4.

May 16, 2002 - Release 0.2.2

Updates:

ConvertAll has been ported to Qt 3. It now works with
both Qt 2.x and 3.x using the same source code.

The help/readme file has been rewritten and now includes
section links.

The binaries for windows have been updated to Python 2.2
and PyQt 3.2 (but are still using Qt 2.3
Non-commercial).

March 19, 2002 - Website Update

This website now looks a little better. Hopefully, it's
more user-friendly, too.

Stay tuned - I'll soon be porting these programs to use
PyQt with Qt 3.0.

September 17, 2001 - Release 0.2.1

Bug Fixes:

Some window captions and icons were corrected.

A window maximizing bug was fixed.

August 20, 2001 - Release 0.2.0

New Features:

A major rewrite was done of the conversion engine.

A new data file format makes it easier to add and verify
units.

The unit name and abbreviation are now
listed separately for better sorting and searching.

Entering of units has been improved by changing operator
precedence, by ignoring spaces and plurals, and by changing
the partial selection list highlight.

An expression can now be used for the number to be
converted.

Updates:

Many additional units were added to the database.

For MS Windows users, the binary files were upgraded to
PyQt Version 2.5.

August 10, 2001 - Release 0.1.1

New Features:

Added color controls to the options dialog.

Updates:

The convertall.ini file on windows was moved to the
program directory.